Why is it so hard to find modern Uk train models?

[StarTrekFan]

Hello, so I am from the US but have been interested in trains from the UK for a long time now. My favorite trains are the class 325, the class 465, and the class 390. I would love to get some models of these trains to use for a display, but they are hard to find. For example, Hornby makes the 465 but only in one gauge, and it's nice but not super high quality. I also found the 390, but again only in one gauge.

So why does there seem to be such a limited selection of models, particularly when it comes to modern equipment? It seems like there's a much bigger selection of US trains than UK trains.


Thanks